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/* ScummVM - Scumm Interpreter
* Copyright (C) 2002-2003 The ScummVM project
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* $Header$
*
*/
#include <stdafx.h>
#include "codec44.h"
#include "chunk.h"
#include "blitter.h"
bool Codec44Decoder::decode(Blitter & dst, Chunk & src) {
int32 size_line, num;
int32 length = src.getSize() - 14;
int32 width = getRect().width();
int32 height = getRect().height();
byte *src2 = (byte *)malloc(length);
byte *org_src2 = src2;
src.read(src2, length);
byte *dst2 = _buffer;
byte val;
do {
size_line = READ_LE_UINT16(src2);
src2 += 2;
length -= 2;
while (size_line != 0) {
num = *src2++;
val = *src2++;
memset(dst2, val, num);
dst2 += num;
length -= 2;
size_line -= 2;
if (size_line != 0) {
num = READ_LE_UINT16(src2) + 1;
src2 += 2;
memcpy(dst2, src2, num);
dst2 += num;
src2 += num;
length -= num + 2;
size_line -= num + 2;
}
}
dst2--;
} while (length > 1);
dst.blit(_buffer, width * height);
free(org_src2);
return true;
}
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